CN103805004B - A kind of overlength is weather-proof, the antiseptic and rustproof fluorocarbon coating of salt spray resistance - Google Patents
A kind of overlength is weather-proof, the antiseptic and rustproof fluorocarbon coating of salt spray resistance Download PDFInfo
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- CN103805004B CN103805004B CN201410084560.XA CN201410084560A CN103805004B CN 103805004 B CN103805004 B CN 103805004B CN 201410084560 A CN201410084560 A CN 201410084560A CN 103805004 B CN103805004 B CN 103805004B
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Abstract
The invention provides that a kind of overlength is weather-proof, the antiseptic and rustproof fluorocarbon coating of salt spray resistance, this coating is to add fluorine element surfactant on the basis of existing fluorocarbon coating and Nano filling prepares.Coating provided by the invention both ensure that the overlength weather resistance of fluorocarbon coating, make again the salt spray resistance of fluorocarbon coating, the anticorrosive level rising to the time limit identical with its weatherability with rustless property, it is achieved that fluorocarbon coating keeps the complete phase of overlength under the maximum conditions such as ocean or polar region/equator.
Description
[technical field]
The present invention relates to a kind of coating, in particular relate to that a kind of overlength is weather-proof, the antiseptic and rustproof fluorocarbon coating of salt spray resistance.
[background technology]
Fluoro coatings is the film forming matter based on fluorine-containing copolymer resins or fluoroolefin copolymer, processed modified, grind the coating made.It is good for owing to it contains the strong C-F of substantial amounts of the strongest known molecule, in addition the physicochemical property that fluorine atom is intrinsic, therefore there is the weatherability of overlength, heat-resisting tolerance to cold, salt fog resistance, humidity resistance, resistance to acids and bases, chemical resistance and radioprotective characteristic, its molecular formula is :-[-CH2CF2-]n-。
Baking-type, self-drying type (double-component) fluorocarbon coating is the polyurethane coating that continues at present, the new varieties of the excellent combination property after acrylic coating and organosilicon coating, it is widely used in the every field of coating decoration industry, because it has the weatherability of overlength, and it is largely used in television tower, on the products such as antenna base station, the ferrum tower being coated can be made, film on framework is not by ultraviolet damage, keep 20 years time limits even more of a specified duration, but the salt spray resistance of fluoro coatings, particularly in coastal, the areas such as island, it is difficult to keep 20 years or more of a specified duration, that is fluoro coatings should should be strengthened on antiseptic and rustproof, the anti-rust and corrosionproperties making the fluoro coatings being coated with on products such as being contained in ocean machinery has the equal time limit with it on anti-ultraviolet property.
Application number is 200910181136.6, and denomination of invention is this coating fluorinated volume high (35～75%) disclosed in " the fluoroelastomer coating of a kind of high fluorinated volume low-temperature setting and method for making thereof ", and has the high temperature resistant and weatherability of excellence.But this invention simply improves merely the Oil repellent in fluororesin system, adds the cost of coating.Application number is: 200610031354.8, and denomination of invention is employing anatase type nano TiO disclosed in " nano-titanium dioxide modified fluorocarbon coating and preparation technology and application "2With rutile type nano TiO2Mixture adds in existing fluorocarbon coating, and adding proportion is: Detitanium-ore-type TiO2With rutile type nano TiO2Mixture: the weight ratio of fluorocarbon coating is 1～4:100；Wherein anatase type nano TiO2With rutile type nano TiO2In mixture, anatase type nano TiO2With rutile-type quietness TiO2The two weight proportion is 4:1.But this invention adopts rutile type nano TiO2Although improve the anti-ultraviolet function of fluorocarbon coating, but nanoscale TiO2Improve the cost of coating.
[summary of the invention]
The overlength weather resistance of fluorocarbon coating should be ensured, its salt spray resistance, anticorrosive, rustless property is made to rise to the level identical with its weather resistance time limit again, the invention provides that a kind of overlength is weather-proof, the antiseptic and rustproof fluorocarbon coating of salt spray resistance, the basis of existing fluorocarbon coating adds fluorine element surfactant and Nano filling, it is achieved that fluorocarbon coating can completely keep the complete phase of about 20 years in maximum conditions regions such as ocean or polar region/equator.
For achieving the above object, the present invention is by the following technical solutions:
The invention provides that a kind of overlength is weather-proof, the antiseptic and rustproof fluorocarbon coating of salt spray resistance, this coating includes fluororesin, firming agent, pigment, filler and solvent, wherein, by mass percentage, containing the fluorine element surfactant of 2～5% in this fluorocarbon coating；Fluororesin in fluorocarbon coating of the present invention selects FEVE resin, and its solid Oil repellent >=25%, firming agent is hexamethylene diisocyanate trimer (HDI trimer)；Pigment includes titanium dioxide, white carbon black；Filler is Nano filling, and its particle diameter is 1～100nm, and Nano filling is CaCO3 and/or Kaolin；Solvent in the fluorocarbon coating of the present invention is one or more in dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate or diethylene glycol ether acetate；In the fluorocarbon coating of the present invention, solvent is mixed solvent, by weight, and dimethylbenzene in mixed solvent: butyl acetate: propylene glycol methyl ether acetate: diethylene glycol ether acetate is 1～4:1:1～3:1～2.
The present invention is in actual mechanical process, and fluorine element surfactant adopts fluorine element surfactant ZONYIFS, ZONYI88 or the 225 fluorine element surfactants of E.I.Du Pont Company；Fluororesin adopt east fluorine JF-2X, JF-3X(Shanghai Dong Fu Chemical Industry Science Co., Ltd), Dong Huan Chemical Co., Ltd. of Dong Huan 3F-2X(Changshu City)；Firming agent is 3390, N-75(Beyer Co., Ltd).
The invention provides that a kind of overlength is weather-proof, the antiseptic and rustproof fluorocarbon coating of salt spray resistance, this coating includes fluororesin, firming agent, pigment, filler, auxiliary agent and solvent, wherein, containing fluorine element surfactant in fluorocarbon coating, by mass percentage, this coating contains the fluorine element surfactant of 2～5%.Fluororesin in technical solution of the present invention be east fluorine JF-2X, JF-3X(Shanghai Dong Fu Chemical Industry Science Co., Ltd), Dong Huan Chemical Co., Ltd. of Dong Huan 3F-2X(Changshu City)；Firming agent is 3390, N-75(Beyer Co., Ltd)；The interpolation of fluorine element surfactant, the gap making fluorocarbon resin is filled, thus adding the intensity of fluorocarbon resin, because fluorine element surfactant price is high, 1200 hours corrosion resistances can be reached, it is only necessary to add 2～5%, as in order to increase weatherability further and consider cost needs to meet, the content of flouridate surfactant can be increased further, it is ensured that product reaches requirements at the higher level.
Containing Nano filling in fluorocarbon coating provided by the invention, by mass percentage, coating contains the Nano filling of 1～10%, and the particle diameter of Nano filling is 1～100nm, and Nano filling is CaCO3And/or Kaolin, wherein CaCO3Particle diameter be 1～100nm, CaCO3Account for the 1～10% of coating quality percentage ratio.
Past fluoro coatings can only ensure the qualifieds such as powdering of paint, the variable color of 20 years, and does not reach the complete paint film standard of non-corroding.Fluorocarbon coating provided by the invention salt spray resistance, antiseptic and rustproof in improved so that fluorocarbon coating provided by the invention salt spray resistance, anticorrosive, antirust on had the breakthrough of matter, it is achieved with the level that its weather resistance has identical useful life.
It is believed that stoping oxygen and water to arrive steel surface as much as possible just can reach antiseptic and rustproof purpose in the past, but recently propose again the concept of wet adhesion, it may be assumed that if wet adhesion is sufficiently large, and be not subjected to displacement at steel surface, iron and steel just can be protected not corroded.The measure taked in the present invention is: at the middle addition fluorine element surfactant of existing fluorocarbon coating, macromolecular chain in fluorocarbon resin is good for containing substantial amounts of C-F, its molecular structure stabilized, the fluorine element surfactant added is attached to painted surface micropore and can anchor into firm, lasting crystalline protective layer, because the surface tension of fluorine element surfactant is lower than water, oil, fluorine element surfactant on its macromolecular scaffold side chain forms water and oil repellant layer at outer layer, this just further improves the salt spray resistance of fluorocarbon coating, antiseptic and rustproof ability, make the fluorocarbon coating provided by the invention can continuous operation in-60 DEG C～150 DEG C environment.
Owing to other corrosive mediums such as coating exists micropore, the oxygen gas and water in environment may penetrate into base metal surface, this is the main inducing becoming electrochemical corrosion, but conventional organic coating no matter how excellent its compactness have, be not likely to form dense coating completely.In technical scheme except adding flouridate surfactant on existing fluorocarbon coating basis, it is additionally added Nano filling.Due to nanometer addition of (particle diameter is between 1～100nm) material, on microcosmic, just can fill in conventional coating unavoidable " pore structure ", prevent the infiltration of various corrosive medium, improve the decay resistance of coating.Being quantitatively adding of Nano filling, both will not make paint thickening nor affect on and do solid work speed, was adding on the basis of coating thickness, wearability, raising mechanical strength and adhesive force so that the antiseptic and rustproof ability of the fluorocarbon coating of the present invention promotes further.
On the basis of technical scheme provided by the invention, according to actual needs, color filters can be selected to add wherein, while reaching high durable, salt spray resistance and anti-rust and corrosionproperties, meets the requirement that color is rich and varied；Especially the high request of outdoor adverse circumstances limiting weather conditions such as (under) equator/marine climate is met.
The solid Oil repellent of the FEVE resin that the present invention adopts reaches more than 25%, and relative amount is more than 90%.Relative to Ministry of Railways bridge protection coating standard TB/T1527-2004, Nippon Standard define more than 15% content's index, the content that specify of HG/T3792 standard be in 18% and traffic industry standard JT/T695-2007 " concrete bridge structure face coat aseptic technic condition " content should be greater than being equal to 20% standard all high, thus anti-corrosive antirusting paint provided by the invention ensure that engineering be coated be contained in 20 years nothing cracking, the phenomenon of foaming, corrosion, efflorescence and peeling.
Fluorocarbon coating detection method provided by the invention is in Table 1:
Table 1 detection method
Sample detection result: in Table 2,3.
Table 2 result of the test
| Index | The present invention |
| Color | Shades of colour can be provided. |
| Gloss | Have light, dumb light, unglazed |
| Flash-point | 27℃ |
| Density | About 1.16kg/m2(in 30 μm of dry films, without loss) |
| Build | 30μm |
| Drying time | Self-drying type: surface drying (25 DEG C) 0.5h； |
| Proportioning | First (coating): second (firming agent)=10～14:1(weight ratio) |
| Overlay painting interval | The shortest 2h, the longest 7d |
| Maturation period | 10min |
| Working life | 25 DEG C, 4h |
| Shelf-life | 6 months |
Table 3 product quality performance indications
Matched group 1 and matched group 2 are tested under the same conditions, during the salt spray resistance of matched group 1, is limited to 900h, during the salt spray resistance of matched group 2, be limited to 800h.
Matched group 1:
Fluororesin 45 rutile titanium valve 22 colour black 0.2
Filling powder 12 solvent 12HDI trimer 10.
Matched group 2:
Fluororesin 45 rutile titanium valve 22 colour black 0.2
Fluorine element surfactant 6 solvent 12HDI trimer 10.
Anti-corrosive antirusting paint of the present invention:
Fluororesin 45 rutile titanium valve 22 colour black 0.2
Fluorine element surfactant 6 filling powder 12 solvent 6
HDI trimer 10.
The fluorine element surfactant that in this test, 3 test group (anti-corrosive antirusting paint of the present invention and matched group 1,2) adopt is E.I.Du Pont Company fluorine element surfactant ZONYIFS, FEVE fluororesin adopts the ZH-04 type resin that Zhong Hao Chemical Co., Ltd. produces, and filling powder is nanoscale CaCO3, firming agent is 3390, and proportioning such as following table selected by solvent:
Filling powder is nanoscale CaCO3。
The present invention is prior art relatively, has the advantage that
1) present invention adds flouridate surfactant in existing fluorocarbon coating so that whole fluorocarbon resin system is finer and close；
2) addition of Nano filling in the present invention, is filled with conventional coating unavoidable " pore structure ", prevents the infiltration of various corrosive medium, improves the decay resistance of coating；
3) the solid Oil repellent of the FEVE resin that the present invention adopts is 25%, it is ensured that engineering application 20 years nothings cracking, foaming, corrosion, efflorescence and peeling；
4) coating provided by the invention has the solvent resistant of excellence, resistance to acids and bases and chemical resistance；
5) coating provided by the invention has antifouling property and self-cleaning performance, it is adaptable to the wide variety of substrates surfaces such as common iron, galvanized part, stainless steel & aluminum section steel；
6) fluorocarbon coating provided by the invention has superpower salt spray resistance and anti-rust and corrosionproperties while ensureing overlength weatherability.
[detailed description of the invention]
The coating of shades of colour can be prepared according to technical scheme and actual demand, be only described for Lycoperdon polymorphum Vitt in the description.
In specific implementation process, fluorine element surfactant adopts the fluorine element surfactant ZONYIFS series of E.I.Du Pont Company, including 8740 fluorine element surfactants；Fluororesin adopts east fluorine JF-2X, JF-3X(Shanghai Dong Fu Chemical Industry Science Co., Ltd),
Dong Huan Chemical Co., Ltd. of Dong Huan 3F-2X(Changshu City)；Firming agent is 3390, N-75(Beyer Co., Ltd).
Embodiment 1
JF-2X45 rutile titanium valve 24 colour black 0.2
ZONYIFS2 nanoscale CaCO38 solvents 11
3390 firming agent 9.
Embodiment 2
JF-3X45 rutile titanium valve 22 colour black 0.2
ZONYI886 nano-kaoline 2 solvent 13
N-75 firming agent 10.
Embodiment 3
3F-2X50 rutile titanium valve 23 colour black 0.2
Du Pont 2255 nano-kaoline 10 solvent 12
N-75 firming agent 9.
Embodiment 4
3F-2X50 rutile titanium valve 24 colour black 0.2
ZONYIFS4 nanoscale CaCO311 solvents 11
3390 firming agent 10.
Embodiment 5
JF-3X45 rutile titanium valve 24 colour black 0.2
ZONYI883 nanoscale CaCO310 solvents 12
3390 firming agent 9.
Embodiment 6
JF-2X50 rutile titanium valve 23 colour black 0.2
Du Pont 2255 nano-kaoline 8 solvent 13
N-75 firming agent 10.
Solvent in embodiment 1～6 is mixed solvent, and concrete proportioning is as follows:
Filling powder in embodiment 1～6 is nanoscale CaCO3Or Kaolin.
Embodiment 7 spraying coating process
Suggestion application number of channels: application two road, self-drying type: build 30～60 μm.
The supporting paint in front road: epoxy zinc rich primer, epoxy micaceous iron intermediate coat, polyurethane iron oxide red anticorrosive paint etc., it is possible to bottom surface is unified, without priming paint, intermediate coat.
Coating process: mopping, roll paint, airless spraying, aerial spraying
Diluent: special diluting agent
Nozzle diameter: 1, airless spraying: 0.4～0.5；2, aerial spraying: 2.0～2.5；
Ejection pressure: 1, airless spraying: 15～30Mpa;2, aerial spraying: 0.3～0.5Mpa.
Amount of dilution: 5～20%(is to paint weighing scale)
Surface treatment: remove application again after oils and fats, water, dust as front road lacquer painting has polluted the suitable method of application.
Execution conditions: substrate temperature must higher than more than dew point 3 DEG C, and relative humidity must less than 75%.
Application fluoro coatings provided by the invention on common cold-reduced sheet.
Buddha's warrior attendant fluoro coatings in the import of anticorrosion Kao Dengbanshang application Korea S.
Any change is there is not in fluorocarbon coating provided by the invention through 1200 hours salt spray tests.
Overlength provided by the invention is weather-proof, salt spray resistance anti-corrosive antirusting paint detects certification through country's coating quality Supervision Test Center.
Anti-corrosive antirusting paint provided by the invention can be used for bridge, freeway guardrail, petroleum storage tank, petroleum pipeline, harbour machinery, boats and ships, offshore oil machinery, structural steelwork, army Fang Cang, outdoor case, airport etc..
Although describing the present invention in conjunction with the preferred embodiments, but the invention is not limited in the middle of above-described embodiment, it should be appreciated that under the guiding of present inventive concept, those skilled in the art can carry out various amendment and improvement, and claims summarise the scope of the present invention.
Claims (9)
1. overlength is weather-proof, an antiseptic and rustproof fluorocarbon coating for salt spray resistance, and this coating includes fluororesin, firming agent, pigment, filler and solvent, it is characterised in that: by mass percentage, possibly together with the fluorine element surfactant of 2～5% in described fluorocarbon coating；Described fluorine element surfactant is the Zonyl225 fluorine element surfactant that E.I.Du Pont Company produces.
2. fluorocarbon coating as claimed in claim 1, it is characterised in that: described fluororesin is FEVE resin, its solid Oil repellent >=25%.
3. fluorocarbon coating as claimed in claim 1, it is characterised in that: described firming agent is hexamethylene diisocyanate trimer.
4. fluorocarbon coating as claimed in claim 1, it is characterised in that: described pigment includes titanium dioxide, white carbon black.
5. fluorocarbon coating as claimed in claim 1, it is characterised in that: by mass percentage, described fluorocarbon coating contains the filler of 1～10%.
6. fluorocarbon coating as claimed in claim 1, it is characterised in that: described filler is CaCO3And/or Kaolin.
7. fluorocarbon coating as claimed in claim 1, it is characterised in that: described filler is Nano filling, and the particle diameter of described Nano filling is 1～100nm.
8. fluorocarbon coating as claimed in claim 1, it is characterised in that: described solvent is one or more in dimethylbenzene, butyl acetate, propylene glycol methyl ether acetate or diethylene glycol ether acetate.
9. fluorocarbon coating as claimed in claim 1, it is characterised in that: described solvent is mixed solvent；
By weight, dimethylbenzene in described mixed solvent: butyl acetate: propylene glycol methyl ether acetate: diethylene glycol ether acetate is 1～4:1:1～3:1～2.
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| CN104032585B (en) * | 2014-05-22 | 2017-05-24 | 巨化集团技术中心 | Coated fiber fireproof cloth and preparation method thereof |
| CN105019241A (en) * | 2015-06-18 | 2015-11-04 | 巨化集团技术中心 | Antifouling and fireproof coating for fiber cloth and preparation method thereof |
| CN106905784A (en) * | 2015-12-22 | 2017-06-30 | 北京奥托米特电子有限公司 | High crosslink density fluorocarbon resin coating and preparation method thereof |
| CN105442474A (en) * | 2015-12-28 | 2016-03-30 | 四川遂广遂西高速公路有限责任公司 | Perfluorocarbon reflective w-beam guardrail and preparation method thereof |
| CN107974212A (en) * | 2017-11-27 | 2018-05-01 | 佛山市顺德区宝丽马彩膜板业科技有限公司 | Weather-proof decorating film |
| CN108441040A (en) * | 2018-03-26 | 2018-08-24 | 佛山市顺德区宝丽马彩膜板业科技有限公司 | A kind of production method of weather-resistant coating, weather-proof ink and weather-proof decorating film |
| CN109057104B (en) * | 2018-08-10 | 2020-09-04 | 辰航新材料科技有限公司 | Fade-proof and corrosion-proof aluminum veneer curtain wall |
| CN110002454B (en) * | 2019-02-26 | 2020-10-13 | 广东省建筑科学研究院集团股份有限公司 | Honeycomb Si-Al composite film compatible with FEVE resin and preparation method thereof |
| CN110922825A (en) * | 2019-12-11 | 2020-03-27 | 天津科瑞达涂料化工有限公司 | Weather-proof anticorrosive PVDF (polyvinylidene fluoride) fluorocarbon coating for special metal substrate |
| CN115353781A (en) * | 2022-09-19 | 2022-11-18 | 浙江省化工研究院有限公司 | Anticorrosive powder coating and preparation method and application of anticorrosive coating |
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| JP2001002998A (en) * | 1999-06-18 | 2001-01-09 | Dainippon Toryo Co Ltd | Corrosion protection of weather resistant steel |
| CN1580154A (en) * | 2004-05-18 | 2005-02-16 | 大连振邦氟涂料股份有限公司 | Fluorocarbon coating and its preparing method |
| CN1903961B (en) * | 2006-07-20 | 2011-05-18 | 上海申真企业发展有限公司 | Lotus leaf effect self cleaning fluorocarbon paint |
| KR102050884B1 (en) * | 2010-07-02 | 2019-12-02 | 디아이씨 가부시끼가이샤 | Fluorine-based surfactant, and coating composition and resist composition each using same |
| CN103224741B (en) * | 2013-04-03 | 2016-06-08 | 广东电网公司电力科学研究院 | A kind of nano-TiO being applied to insulator dirt-proof2/ PTFE hybrid fluorocarbon paint and preparation method thereof |
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